Add OpenID and session config variables to .env

Introduced new environment variables for OpenID authentication (client ID, secret, scopes), session cookie naming, user token usage, and automatic login. These additions support enhanced authentication and session management configuration.

.env

@@ -26,6 +26,13 @@ PUBLIC_APP_ASSETS=chatui # used to find logos & favicons in static/$PUBLIC_APP_A
 PUBLIC_APP_DESCRIPTION=# description used throughout the app
 PUBLIC_APP_DATA_SHARING=# Set to 1 to enable an option in the user settings to share conversations with model authors
 
+COUPLE_SESSION_WITH_COOKIE_NAME=
+OPENID_CLIENT_ID=
+OPENID_CLIENT_SECRET=
+OPENID_SCOPES="openid profile inference-api"
+USE_USER_TOKEN=
+AUTOMATIC_LOGIN=
+
 ### Local Storage ###
 MONGO_STORAGE_PATH= # where is the db folder stored